The Weinstein Enhanced Sensory Test (WEST) is performed using a calibrated monofilament esthesiometer. This study was designed to establish normal values for the WEST when testing digit tip sensibility and to assess whether factors such as age, gender, and side affect normal WEST values. In order to establish normal values, the WEST was performed on 120 subjects who had no clinical evidence of peripheral neuropathy or subjective changes in digit tip sensation. Subjects also completed a questionnaire and underwent neurometric testing of the median nerve and a brief clinical examination. The results of the study indicate that age had a significant effect on WEST values (p = 0.0002) and that there was an interaction effect for age and gender (p = 0.018). There are strong correlations between the WEST values for individual digits for a given subject and between WEST and electroneurometer values. Normal values for the WEST should be interpreted with regard to age and gender. These normal values (defined as the values for 80% of the population of each category) based on the sample used for this study are as follows: for men and women 55 years of age or younger, 0.035 g; for women older than 55 years, 0.15 g; for men older than 55 years, 0.385 g.
[1]
S A Goldstein,et al.
Evaluation of normal values for stationary and moving two-point discrimination in the hand.
,
1984,
The Journal of hand surgery.
[2]
A. Lee Dellon,et al.
Evaluation of sensibility and re-education of sensation in the hand
,
1981
.
[3]
J. M. Hunter,et al.
Rehabilitation of the hand : surgery and therapy
,
1995
.
[4]
J. Macdermid,et al.
Decision making in detecting abnormal Semmes-Weinstein monofilament thresholds in carpal tunnel syndrome.
,
1994,
Journal of hand therapy : official journal of the American Society of Hand Therapists.
[5]
J. Bell-Krotoski.
Advances in sensibility evaluation.
,
1991,
Hand clinics.
[6]
W F Blair,et al.
Preliminary clinical evaluation of the digital electroneurometer.
,
1984,
Biomedical sciences instrumentation.
[7]
Johanne Desrosiers,et al.
Hand Sensibility of Healthy Older People
,
1996,
Journal of the American Geriatrics Society.
[8]
S. Weinstein.
Fifty years of somatosensory research
,
1993
.